Elevator Car Balustrade Docking System
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Solution Overview
Problem
Existing elevator car balustrades are heavy, expensive, and complex to install, posing challenges for efficient fall protection on elevator car roofs.
Innovation Solution
The implementation of a balustrade system with posts attached to a horizontal upper side of the elevator car roof, utilizing docking elements with form-fitting features such as slots and fingers or apertures for quick and easy installation, creating a stable and reliable form-fit connection without the need for welding or additional fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional balustrades are used on the elevator car roof, then fall protection is provided, but the balustrade becomes heavy and expensive
Solution Approach 1:
The balustrade is divided into separate modular components: posts with connection elements that can be individually assembled on the elevator car roof. This segmentation allows for lighter individual parts that combine to provide the required fall protection, reducing overall weight while maintaining structural integrity
Solution Approach 2:
The connection elements use form-fitting geometric features (protrusions and recesses) rather than traditional heavy fastening mechanisms. This parameter change in the connection method enables lightweight construction while ensuring reliable fall protection through precise geometric interlocking
2Reliability
If traditional balustrades are installed on the elevator car roof, then fall protection is achieved, but the installation process becomes complex
Solution Approach 1:
The balustrade system is segmented into pre-fabricated modular units with integrated connection elements. This allows for simplified on-site assembly where modules are simply connected together rather than requiring complex installation procedures, reducing installation complexity while maintaining fall protection reliability
Solution Approach 2:
The connection elements are designed with self-aligning form-fitting features that guide proper assembly without requiring precise manual positioning or complex alignment procedures. The geometric interlocking automatically ensures correct installation, reducing installation complexity while guaranteeing reliable fall protection
Data Source
AI summary
An elevator car has a balustrade arranged on a roof of the elevator car, wherein the balustrade includes posts, that are attached on a horizontal upper side of the roof, and post-connecting crossmembers. For each post, a docking element is arranged on the upper side of the roof, and the post can be docked on the docking element. The docking element has form-fitting elements in the form of fingers for accommodating the post in a form-fitting manner and the post has slots or apertures, that are complementary to the fingers, the fingers engaging in the slots or the apertures. The docking element is a flattened component made up of two stacked plates and is screwed to the roof. The balustrade is secured by obliquely running supporting profiles extending between the handrail and the roof.